. >>> and why a local utility company wants to make thousands of customers pay for more their elect rit bills. and good evening. i'm doreen gentzler. >>> 20 children murdered almost one year ago in connecticut. tonight the 911 calls for the sandy hook elementary school shooting were released despite a long court battle. parents of the young victims did not want the calls released. nbc news has decided not to air those recordings. jay gray joins us live from new york with more on what we learned from listening to the 911 calls. jay? >> good evening. the tapes are chilling. a 911 dispatcher urging teachers to lock their doors, protect and keep them calm. instructing another faculty member to keep pressure on a gunshot wound. still many say those accounts should have never been made public. it is a day the survivors and families of victims from the sandy hook massacre have been dreading. the release of 911 calls from that day. a painful reminder of the and heart